{"code":"J18.1","type":"code","title":"Lobar pneumonia, unspecified organism","codeAlso":[", if applicable, any associated condition such as:","aspiration pneumonia (J69.-)"],"includes":[],"modern_v":"official26","codeFirst":[", if applicable, associated influenza (J09.X1, J10.0-, J11.0-)"],"excludes1":["congenital pneumonia (P23.0)","drug-induced interstitial lung disorder (J70.2-J70.4)","interstitial pneumonia NOS (J84.9)","neonatal aspiration pneumonia (P24.-)","pneumonitis due to fumes and vapors (J68.0)","usual interstitial pneumonia (J84.178)"],"excludes2":["abscess of lung with pneumonia (J85.1)","aspiration pneumonia due to anesthesia during labor and delivery (O74.0)","aspiration pneumonia due to anesthesia during pregnancy (O29)","aspiration pneumonia due to anesthesia during puerperium (O89.0)","aspiration pneumonia due to solids and liquids (J69.-)","aspiration pneumonia NOS (J69.0)","lipid pneumonia (J69.1)","pneumonitis due to external agents (J67-J70)","allergic or eosinophilic pneumonia (J82)","meconium pneumonia (P24.01)","pneumonia due to solids and liquids (J69.-)","congenital pneumonia (P23.9)","rheumatic pneumonia (I00)","ventilator associated pneumonia (J95.851)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["J18","J18.0","J18.2","J18.8","J18.9"],"inclusionTerms":[],"sibling_titles":{"code":"J18.9","title":"Pneumonia, unspecified organism","isBillable":true},"useAdditionalCode":["code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)"],"clinicalDefinition":"Lobar pneumonia, unspecified organism is a billable ICD-10-CM diagnosis code (J18.1). Excludes1 (not coded here): congenital pneumonia (P23.0); drug-induced interstitial lung disorder (J70.2-J70.4); interstitial pneumonia NOS (J84.9); neonatal aspiration pneumonia (P24.-); pneumonitis due to fumes and vapors (J68.0); usual interstitial pneumonia (J84.178). Excludes2 (not included here): abscess of lung with pneumonia (J85.1); aspiration pneumonia due to anesthesia during labor and delivery (O74.","officialDefinition":"Lobar pneumonia, unspecified organism is a billable ICD-10-CM diagnosis code (J18.1). Excludes1 (not coded here): congenital pneumonia (P23.0); drug-induced interstitial lung disorder (J70.2-J70.4); interstitial pneumonia NOS (J84.9); neonatal aspiration pneumonia (P24.-); pneumonitis due to fumes and vapors (J68.0); usual interstitial pneumonia (J84.178). Excludes2 (not included here): abscess of lung with pneumonia (J85.1); aspiration pneumonia due to anesthesia during labor and delivery (O74.0); aspiration pneumonia due to anesthesia during pregnancy (O29); aspiration pneumonia due to anesthesia during puerperium (O89.0); aspiration pneumonia due to solids and liquids (J69.-); aspiration pneumonia NOS (J69.0); lipid pneumonia (J69.1); pneumonitis due to external agents (J67-J70); allergic or eosinophilic pneumonia (J82); meconium pneumonia (P24.01); neonatal aspiration pneumonia (P24.-); pneumonia due to solids and liquids (J69.-); congenital pneumonia (P23.9); rheumatic pneumonia (I00); ventilator associated pneumonia (J95.851). Code first: , if applicable, associated influenza (J09.X1, J10.0-, J11.0-). Use additional code: code, if applicable, to identify resistance to antimicrobial drugs (Z16.-). Code also: , if applicable, any associated condition such as:; aspiration pneumonia (J69.-).","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}